Which of the following companies employ a one-step approach to direct marketing?
A. The QVC shopping network.
B. A magazine subscription service that sends an announcement of an upcoming sweepstakes.
C. An ad advising television viewers to watch their mailboxes for a way to earn free calling cards.
D. A company asking if a homeowner is interested in an estimate for a vinyl siding.
E. An advertisement for band - aid announcing free gifts on purchase of band - aids worth $10 and above.
Answer: A